Kelty Sleeping Bag's Cosmic 20

Product Information

That said, I was still warm overall and would take the Cosmic out again. Just have to shake, shake, shake it some more to get those feathers in line. Final Word In short, the ability of down to provide insulation is measured by its fill power, which is usually given as a number between 400 and 900. This refers to the number of cubic inches one ounce of down will fill when it has reached its maximum loft. Outdoor brand Kelty has developed a bit of a reputation in recent years for pulling rabbits out of the proverbial hat by producing high-quality products that cost a fraction of the price of comparable items from bigger-name brands. Hoodless Sleeping Bags: Hoodless sleeping bags or quilts are more commonly an option for summer hikes, but those who feel overly restricted by a mummy-style bag with a tight hood might prefer to use a hoodless sleeping bag and sleep with a hat on to keep their dome and ears toasty throughout the night. A final shape worth mentioning is the semi-rectangular bag, which—as the name implies—shares commonalities with both rectangular and mummy designs. In terms of dimensions, they’re typically roomier than standard mummy bags (particularly at the shoulders and hips) but not overly generous like some rectangular models. All in all, semi-rectangular bags typically offer a good mix of comfort and weight, shaving away excess material while still providing enough space to roll around during the night. For instance, Nemo’s Disco 15 and Forte Endless Promise 20 have roomier fits than most traditional mummy bags, with a noticeable boost in space around the knees and elbows. Nemo's spoon-shaped Forte is roomier than traditional mummy bags Temperature Rating

Compared to the men's versions, these bags are narrower at the shoulders, roomier at the hips and have extra insulation in the mid-section and foot of the bag, which are prime areas for heat loss. While this may seem like nothing to write home about, it can make a big difference to a sleeping bag’s overall convenience and durability because this area around the zippers is notoriously prone to ripping when impatient users use excessive force to undo a snag and end up tearing through the delicate liner fabric with the zipper. What we like: A super comfortable and fully featured option for two campers; temperature rating feels generous. Just got this on sale from Campmor a few days ago, and thought I would share my experience with it. Mummy bags typically have a ¾-length side zip that requires some wriggling to get in and out of and can’t be opened up completely should you want to zip the sleeping bag together with another compatible bag. That’s why for camping, we prefer a bag that fully unzips. Not only is it easy to create a large and comfortable space for two if you zip it to another bag, but unzipping the bag on its own opens it up for use as a blanket. And if the bag has a tough exterior shell, you can use it as an outdoor picnic blanket in a pinch. We prefer a full zipper for campingMummy-style: Preferred for its streamlined design, minimization of weight, and reduction of empty space to be heated up by your body, the vast majority of sleeping bags on the market now take this form. The hood and the tapered shape may prove a little claustrophobic for some, but in winter conditions this style of sleeping bag is by far the most thermally efficient. For those interested in such things, Casey's calculation on loft can be a good starting point… However, for the numbers to be accurate that calculation assumes that the amount of down is going into the same-cut sleeping bag shell & that the shell fabric is the same weight. Given that the two bags compared have a difference of 3" in shoulder girth, and have different-weight shells, the actual "loft ratio," if we were to call it that, would be more in favor of the Western bag. There was a time when purchasing a well-made, efficient, down, four-season sleeping bag meant having to consider remortgaging your home and/or resigning yourself to carrying a very hefty and bulky load with you wherever you planned on doing your camping. This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. The Cosmic Down 20° sleeping bag from Kelty gives you an updated design that's well-suited to fast-moving outdoor adventures across a range of conditions.

They’re also soft and comfortable, thanks to a 20-denier taffeta nylon shell and lining. You get a cosy hood and a ‘natural fit’ footbox to give your toes a bit more wiggle room. In addition, features like a zipper draught tube with an anti-snag zipper design and a lofty draught collar help to keep things extra toasty. Those are design elements usually only found in much higher-priced bags.

TENTS & SHELTERS

The Cosmic Down 20 is a typical mummy bag. It gets narrow around the waist and feet, has a cinch hood, and hugs you. More on sleeping bag types in our Guide.